#27 Create Domain For User
#26 Create Domain For Notification
#27 Create Domain For User
Merge pull request #28 from dr40/cv/27/Create_Domain_User

cv/27/create domain user
#26 Create Domain For Notification
Merge pull request #29 from dr40/ha/26/Create_Domain_Notification

Ha/26/create domain notification
#24 Create Domain For Category
Merge pull request #31 from dr40/ko/24/Create_Domain_Category

Ko/24/create domain category